zzp header dp combo
zzp header dp combo
im currently installing my zzp header dp combo with a catless mid pipe when i realized the catless mid pipe has no o2 sensor hole. is there supposed to be one? what do i do with the post cat o2 sensor since my new catless dp does not have a hole for it?
thanks
thanks
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z28addiction
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Sep 28, 2015 12:03 AM



